#!/bin/bash

# TODO: use tail instead of cat where only the top of the file is needed

# extract the multiplier of the matrix
MUL=`cat $1 \
| egrep -o 'e\+[0-9]* \*' \
| tr -d 'e+ *'`

if [ -z "$MUL" ]; then
    MUL=1
fi

# get the number of cols
COLS=`cat $1 \
| egrep '([:space:]*([01](\.[0-9]*){0,1})[:space:]*)+$' \
| tail -n1 \
| wc -w`

# read the matrix, multiply to correct value and put it out
cat $1 \
| egrep '([:space:]*([01](\.[0-9]*){0,1})[:space:]*)+$' \
| tr " " "\n" \
| egrep -v '^$' \
| while read; do 
    echo $MUL '*' $REPLY
done  \
| bc \
| sed 's/\([0-9]\+\)\.0*/\1/' \
| ( I=1
    while read; do
	if [ $I -eq $COLS ]; then
	    echo "$REPLY"
	    I=1
	else
	    echo -n "$REPLY,"
	    I=$(( $I + 1 ))
	fi
    done )


# old debug stuff
#echo $MUL $COLS